CN113489886A - Camera module and electronic equipment - Google Patents
Camera module and electronic equipment Download PDFInfo
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- CN113489886A CN113489886A CN202110886199.2A CN202110886199A CN113489886A CN 113489886 A CN113489886 A CN 113489886A CN 202110886199 A CN202110886199 A CN 202110886199A CN 113489886 A CN113489886 A CN 113489886A
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- lens
- optical axis
- carrier
- assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/02—Constructional features of telephone sets
- H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
- H04M1/026—Details of the structure or mounting of specific components
- H04M1/0264—Details of the structure or mounting of specific components for a camera module assembly
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/54—Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/57—Mechanical or electrical details of cameras or camera modules specially adapted for being embedded in other devices
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
- H04N23/687—Vibration or motion blur correction performed by mechanical compensation by shifting the lens or sensor position
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- Engineering & Computer Science (AREA)
- Signal Processing (AREA)
- Multimedia (AREA)
- Adjustment Of Camera Lenses (AREA)
- Studio Devices (AREA)
Abstract
The embodiment of the application provides a camera module and electronic equipment, wherein the electronic equipment comprises a shell and the camera module arranged on the shell, the camera module comprises a shell, a lens, an image sensor, a first anti-shake mechanism and a second anti-shake mechanism, and the lens is arranged in the shell; the image sensor is arranged in the shell and is opposite to the lens in a direction parallel to the optical axis of the lens; the first anti-shake mechanism is arranged in the shell and connected with the lens, and is used for driving the lens to move along the direction parallel to the optical axis of the lens and move along the direction perpendicular to the optical axis of the lens; the second anti-shake mechanism is arranged in the shell and connected with the image sensor, and the second anti-shake mechanism is used for driving the image sensor to move along the direction perpendicular to the optical axis of the lens or rotate around the direction of the optical axis of the lens. The embodiment of the application can improve the anti-shake effect of the camera module.
Description
Technical Field
The application relates to the technical field of electronics, in particular to camera module and electronic equipment.
Background
With the increasing popularity of electronic devices, electronic devices have become indispensable social tools and entertainment tools in people's daily life, and people have increasingly high requirements for electronic devices. Taking a mobile phone as an example, when people use the mobile phone to shoot, the shot image is blurred and unclear due to shaking of the mobile phone. At present, a camera of a mobile phone can reduce the influence of shaking of the mobile phone on the imaging definition by integrating technologies such as optical anti-shaking, electronic anti-shaking and photoreceptor anti-shaking. However, the conventional camera anti-shake system has a poor anti-shake effect.
Disclosure of Invention
The embodiment of the application provides a camera module and electronic equipment, and the anti-shake effect of the camera module can be improved.
The embodiment of the application provides a camera module, include:
a housing;
a lens disposed within the housing;
an image sensor disposed in the housing and disposed opposite to the lens in a direction parallel to an optical axis of the lens;
the first anti-shake mechanism is arranged in the shell and connected with the lens, and is used for driving the lens to move along the direction parallel to the optical axis of the lens and move along the direction vertical to the optical axis of the lens; and
the second anti-shake mechanism is arranged in the shell and connected with the image sensor, and the second anti-shake mechanism is used for driving the image sensor to move along the direction perpendicular to the optical axis of the lens or rotate around the direction of the optical axis of the lens.
The embodiment of the application provides an electronic equipment, including the casing with as above application embodiment the module of making a video recording, the module setting of making a video recording is on the casing.
The camera module of this application embodiment can realize camera lens anti-shake and image sensor anti-shake simultaneously, and integrated camera lens anti-shake function and image sensor anti-shake function for only adopting single anti-shake structures such as camera anti-shake or image sensor anti-shake, the optics anti-shake that this application embodiment can realize bigger angle effectively promotes the optics anti-shake effect of shooting device.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below. It is obvious that the drawings in the following description are only some embodiments of the application, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic structural diagram of a camera module in the electronic device shown in fig. 1.
Fig. 3 is a schematic structural diagram of an anti-shake mechanism in the camera module shown in fig. 2.
Fig. 4 is an exploded view of the anti-shake mechanism shown in fig. 2.
Fig. 5 is a schematic view of a first partial structure of the anti-shake mechanism shown in fig. 3.
Fig. 6 is a schematic structural diagram of the first carrier in the anti-shake mechanism shown in fig. 4.
Fig. 7 is a schematic diagram of a second partial structure of the anti-shake mechanism shown in fig. 3.
Fig. 8 is a schematic structural view of a third part of the anti-shake mechanism shown in fig. 3.
Fig. 9 is a schematic diagram of a fourth partial structure of the anti-shake mechanism shown in fig. 3.
Fig. 10 is a schematic diagram of a fifth partial structure of the anti-shake mechanism shown in fig. 3.
Fig. 11 is a schematic diagram of a sixth partial structure of the anti-shake mechanism shown in fig. 3.
Fig. 12 is a schematic view of a matching structure of the guide and the first ball in the anti-shake mechanism shown in fig. 4.
Fig. 13 is a schematic structural view of a guide member in the anti-shake mechanism shown in fig. 4.
Fig. 14 is a schematic structural view of the upper cover in the anti-shake mechanism shown in fig. 4.
Fig. 15 is a schematic diagram of a partial explosion structure of the camera module shown in fig. 2.
Fig. 16 is an exploded view of the second anti-shake mechanism in the camera module shown in fig. 15.
Detailed Description
As used herein, an "electronic device" (or simply "terminal") includes, but is not limited to, an apparatus configured to receive/transmit communication signals via a wireline connection and/or via a wireless communication network, such as a cellular network, a wireless local area network, or the like. Examples of mobile terminals include, but are not limited to, cellular telephones and conventional laptop and/or palmtop receivers or other electronic devices that include a radiotelephone transceiver. A cellular phone is an electronic device equipped with a cellular communication module.
The inventor finds that some mobile phones only adopt one elastic sheet type driving motor or only adopt one ball type driving motor to simultaneously realize displacement in the horizontal direction and the vertical direction, and the elastic sheet type driving motor or the ball type driving motor is easy to damage when displacement in two different directions is simultaneously realized.
In order to solve the above technical problem, the embodiment of the present application provides a novel anti-shake mechanism, a camera module and an electronic device. The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
Referring to fig. 1 and fig. 2, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure, and fig. 2 is a schematic structural diagram of a camera module in the electronic device shown in fig. 1. The electronic device 1000 provided in the embodiment of the present application may specifically be a portable device such as a mobile phone, a tablet computer, a notebook computer, and a wearable device, and the following description will take the mobile phone as an example. As shown in fig. 1, the electronic device 1000 may include a housing 200, a camera module 400, and a display screen 600. The display screen 600 is disposed on the housing 200, and can be used for displaying images, and the camera module 400 can be disposed in the housing 200 and can receive light emitted from the external environment to capture images.
The housing 200 may include a middle frame and a rear case, the display screen 600 may be covered on one side of the middle frame, and the rear case is covered on the other side of the middle frame. For example, the display screen 600 and the rear case may be covered on two opposite sides of the middle frame by bonding, welding, and clamping. The camera module 400 may be disposed between the display screen 600 and the rear case, and may receive light emitted from an external environment.
The rear case may be a battery cover of the electronic device 1000, and may be made of glass, metal, hard plastic, or other electrochromic materials. The rear case has a certain structural strength, and is mainly used for protecting the electronic device 1000. Correspondingly, the material of the middle frame can also be glass, metal, hard plastic and the like. The middle frame also has a certain structural strength, and is mainly used for supporting and fixing the camera module 400 and other functional devices installed between the middle frame and the rear case. Such as a battery, a motherboard, and an antenna. Further, since the middle frame and the rear housing are generally directly exposed to the external environment, the middle frame and the rear housing may preferably have certain wear-resistant, corrosion-resistant, scratch-resistant, and other properties, or the outer surfaces of the middle frame and the rear housing (i.e., the outer surface of the electronic device 1000) may be coated with a layer of wear-resistant, corrosion-resistant, scratch-resistant functional material.
The display screen 600 may include a display module, a circuit for responding to a touch operation performed on the display module, and the like. The Display screen 600 may be a screen using an OLED (Organic Light-Emitting Diode) or a screen using an LCD (Liquid Crystal Display) to Display an image. The display screen 600 may be a flat screen, a hyperboloid screen, or a four-curved screen in appearance, which is not limited in this embodiment. It should be noted that, for the mobile phone, the flat panel screen refers to the display screen 600 which is arranged in a flat panel shape as a whole; the hyperboloid screen is that the left and right edge areas of the display screen 600 are arranged in a curved shape, and the other areas are still arranged in a flat plate shape, so that the black edge of the display screen 600 can be reduced, the visible area of the display screen 600 can be increased, and the aesthetic appearance and the holding hand feeling of the electronic device 1000 can be increased; the four-curved-surface screen is that the upper, lower, left and right edge regions of the display screen 600 are all in curved arrangement, and other regions are still in flat arrangement, so that the black edge of the display screen 600 can be further reduced, the visible region of the display screen 600 can be increased, and the aesthetic appearance and holding hand feeling of the electronic device 1000 can be further increased.
In this embodiment, the camera module 400 can be used to realize functions of the electronic device 1000 such as photographing, video recording, face recognition unlocking, code scanning payment, and the like. It should be noted that the camera module 400 may be a rear-view camera as shown in the drawings, or may be a front-view camera, which is not limited in this embodiment. The structure of the camera module 400 is described in detail below with reference to the drawings.
As shown in fig. 2, the camera module 400 may include a housing 410, a first anti-shake mechanism 420, a lens 440, an image sensor 460, and a second anti-shake mechanism 480. Wherein the first anti-shake mechanism 420, the lens 440, the image sensor 460, and the second anti-shake mechanism 480 are all disposed within the housing 410. The lens 440 is connected to the first anti-shake mechanism 420, and the first anti-shake mechanism 420 drives the lens 440 to move, so as to achieve the lens anti-shake function of the camera module 400. The image sensor 460 is disposed opposite to the lens in a direction parallel to the optical axis of the lens, and the image sensor 460 is connected to the second anti-shake mechanism 480. The second anti-shake mechanism 480 is disposed opposite to the first anti-shake mechanism 420 in a direction parallel to the optical axis of the lens 440, the second anti-shake mechanism 480 is connected to the image sensor 460, and the second anti-shake mechanism 480 is configured to drive the image sensor 460 to move in a direction perpendicular to the optical axis of the lens 440 or rotate around the optical axis of the lens 440, so as to implement an anti-shake function of the image sensor 460 of the camera module 400.
Specifically, the lens 440 may be made of glass or plastic. The lens 440 is mainly used to change the propagation path of light and focus the light. Lens 440 may include multiple sets of lenses that correct and filter light rays from each other; when light passes through the lens 440, the plurality of lens layers filter stray light (e.g., infrared light), so as to increase the imaging effect of the camera module 400. The image sensor 460 may be a CCD (Charge Coupled Device) or CMOS (Complementary Metal Oxide Semiconductor) image sensor. The image sensor 460 may be disposed opposite to the lens 440 in an optical axis direction of the camera module 400 (i.e., the optical axis direction of the lens 440, as shown by a dotted line in fig. 2), and is mainly configured to receive light collected by the lens 440 and convert an optical signal into an electrical signal, so as to meet an imaging requirement of the camera module 400.
It can be understood that the first anti-shake mechanism 420 and the second anti-shake mechanism 480 are mainly used for improving the imaging effect of the camera module 400 caused by shake of the user during the use process, so that the imaging effect of the image sensor 460 can meet the use requirement of the user. The camera module 400 of this application embodiment both can realize camera lens 440 anti-shake, can realize image sensor 460 anti-shake again, and the camera module 400 of this application embodiment has two anti-shake functions promptly.
In the related art, only a single anti-shake function such as camera anti-shake or image sensor anti-shake can be generally realized, but an anti-shake angle that can be realized by a single anti-shake structure such as camera anti-shake or image sensor anti-shake is limited by a structural space of the electronic device, and only an optical anti-shake function of a small angle (such as within 1 ° or within 1.5 °) can be realized. The camera module 400 of this application embodiment can realize camera lens 440 anti-shake and image sensor 460 anti-shake simultaneously, and integrated camera lens 440 anti-shake function and image sensor 460 anti-shake function can realize the optical anti-shake of bigger angle for correlation technique, effectively promotes camera module 400's optical anti-shake effect.
Based on the optical anti-shake technology, a sensor such as a gyroscope or an accelerometer of the electronic device 1000 (or the camera module 400) may detect shake of the lens 440 to generate a shake signal, and transmit the shake signal to a processing chip of the electronic device 1000 and/or the camera module 400, and the processing chip of the electronic device 1000 and/or the camera module 400 may calculate a displacement amount that the first anti-shake mechanism 420 needs to compensate, so that the first anti-shake mechanism 420 may compensate the lens 440 according to a shake direction of the lens 440 and the displacement amount thereof, thereby improving an imaging effect of the camera module 400 caused by shake of a user during use.
The specific structure of the first anti-shake mechanism 420 and the matching relationship between the first anti-shake mechanism and other structural members in the camera module 400 will be described in detail below.
Referring to fig. 3 to 4, fig. 3 is a schematic structural diagram of an anti-shake mechanism in the camera module shown in fig. 2, and fig. 4 is a schematic structural diagram of an explosion structure of the anti-shake mechanism shown in fig. 2. The first anti-shake mechanism 420 may include a carrier assembly 421, a first drive assembly 422, and a second drive assembly 423. The bearing assembly 421 is used for bearing the lens 440, the first driving assembly 422 and the second driving assembly 423 are both disposed on the bearing assembly 421, and the first driving assembly 422 and the second driving assembly 423 are two driving assemblies with different structures. The first driving assembly 422 can drive the bearing assembly 421 to move along a direction parallel to the optical axis of the lens 440, and when the bearing assembly 421 moves along the direction parallel to the optical axis of the lens 440, the bearing assembly can drive the lens 440 to move along the direction parallel to the optical axis of the lens 440 together, so as to compensate the shake amount of the lens 440 in the direction parallel to the optical axis of the lens 440. The second driving element 423 can drive the carrier element 421 to move along a direction perpendicular to the optical axis of the lens 440, and when the carrier element 421 moves along the direction perpendicular to the optical axis of the lens 440, the carrier element can drive the lens 440 to move along the direction perpendicular to the optical axis of the lens 440, so as to compensate for the shake amount of the lens 440 in the direction perpendicular to the optical axis of the lens 440.
Compare in only adopting a shell fragment formula CD-ROM drive motor or a ball formula CD-ROM drive motor to realize the displacement of horizontal direction and vertical direction simultaneously among the correlation technique, this application embodiment adopts the drive assembly of two different structures to carry out the drive of two different directions respectively to the carrier assembly, can prevent because the condition that same drive assembly leads to drive assembly's partial part to damage when realizing the displacement of two different directions simultaneously to improve first anti-shake mechanism 420's anti-shake reliability, promote first anti-shake mechanism 420's wholeness ability.
In addition, long-term research by the inventor finds that the elastic sheet type driving motor of some mobile phones usually uses the elastic sheet structure and the suspension ring line structure to realize the displacement of the driving motor in the horizontal direction and the vertical direction so as to drive the displacement of the lens in the horizontal direction and the vertical direction, but the problem of fracture of the elastic sheet structure and/or the suspension ring line is easy to occur in the process of realizing the displacement in the horizontal direction; the ball formula actuating motor of some cell-phones adopts a plurality of balls usually to realize the displacement of the horizontal direction of actuating motor and vertical direction in order to drive the horizontal direction of camera lens and vertical direction's displacement, however in the displacement process who realizes vertical direction, thereby a plurality of balls can strike each other and make a plurality of balls pit appear easily and lead to rolling problem not smooth and easy.
Based on this, the first driving assembly 422 of the embodiment of the present application includes an elastic structure 4221, and the elastic structure 4221 is configured to enable the bearing assembly 421 to move along a direction parallel to the optical axis of the lens 440 by an elastic force; the second driving assembly 423 includes a rolling structure 4231, and the rolling structure 4231 is configured to enable the bearing assembly 421 to move in a direction perpendicular to the optical axis of the lens 440 based on a rolling operation of the rolling structure 4231.
It can be understood that, in the embodiment of the present application, the first driving assembly 422 realizes the up-and-down movement of the bearing assembly 421 through the elastic structure 4221, and the second driving assembly 423 realizes the left-and-right movement of the bearing assembly 421 through the rolling structure 4231, and compared with the related art, the problem that the elastic structure 4221 is easily broken due to being pulled in two mutually perpendicular directions, such as the up-and-down movement and the left-and-right movement, at the same time, and the problem that the rolling structure 4231 is easily dented in the up-and-down movement process to cause unsmooth rolling can be avoided.
It should be noted that all directional indications (such as up, down, left, right, front, and back) in the embodiments of the present application are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture, and if the specific posture is changed, the directional indication is changed accordingly.
Referring to fig. 4 and 5, in fig. 5 illustrating a first partial structure of the anti-shake mechanism shown in fig. 3, the carrier assembly 421 may include a first carrier 4211, a second carrier 4212 and a guide 4213, and the second carrier 4212 and the guide 4213 are disposed on the first carrier 4211. The first carrier 4211 may be regular in shape, for example, the first carrier 4211 may be a rectangular frame structure, which may have a first side 42111, a second side 42112, a third side 42113 and a fourth side 42114 connected in sequence, the first side 42111 and the third side 42113 are disposed opposite to each other, and the second side 42112 and the fourth side 42114 are disposed opposite to each other. The first carrier 4211 is further provided with a storage space 42115, and the storage space 42115 is defined by the first side 42111, the second side 42112, the third side 42113 and the fourth side 42114, and can store partial devices of the first anti-shake mechanism 420. Of course, the first carrier 4211 may also be rounded rectangular or irregular in shape.
The second carrier 4212 may be accommodated in the accommodation space 42115, and the second carrier 4212 may also move within the accommodation space 42115. The lens 440 may be disposed on the second carrier 4212, and when the second carrier 4212 moves, the lens 440 may be moved. For example, the second carrier 4212 may also be a rectangular frame structure, which may include a first support 42121, a second support 42122, a third support 42123 and a fourth support 42124 connected to each other, the first support 42121 and the third support 42123 are disposed opposite to each other, and the second support 42122 is disposed opposite to the fourth support 42124. The second carrier 4212 may be provided with a through hole 42125, and the lens 440 may be inserted through the through hole 42125 and fixed with the wall of the through hole 42125.
When the second carrier 4212 is accommodated in the accommodating space 42115, the first support portion 42121 is disposed opposite to the first side 42111, the second support portion 42122 is disposed opposite to the second side 42112, the third support portion 42123 is disposed opposite to the third side 42113, and the fourth support portion 42124 is disposed opposite to the fourth side 42114.
The guide 4213 is stacked on a portion of the first carrier 4211 in a direction parallel to the optical axis of the lens 440 such that a portion of the first carrier 4211 is exposed outside the guide 4213. For example, the guide 4213 may include a first side 42131 and a second side 42132 connected to each other, which may be generally "L" shaped. The first side 42131 may be laminated to the first side 42111 and the second side 42132 may be laminated to the second side 42112 such that the third and fourth sides 42113, 42114 are exposed outside of the guide 4213, or the third and fourth sides 42113, 42114 are not laminated to a portion of the guide 4213. Compared with the guide 4213 in the related art, the guide 4213 in a rectangular structure can reduce the volume of the guide 4213, so that the space occupation of the guide 4213 on the first anti-shake mechanism 420 is reduced, and the miniaturization of the first anti-shake mechanism 420 is facilitated.
As shown in fig. 4, the first anti-shake mechanism 420 may further include a magnetic assembly 424, and the magnetic assembly 424 may be a permanent magnet or an electromagnet, which may generate a magnetic field. Wherein the magnetic component 424 can be disposed on the carrying component 421, and the magnetic component 424 can include a plurality of magnetic members, each of which can include two magnets with opposite magnetism.
The first driving element 422 is located in the magnetic field generated by the magnetic element 424, and the first driving element 422 can drive the supporting element 421 to move along the direction parallel to the optical axis of the lens 440 under the action of the magnetic element 424. For example, the first driving assembly 422 may further include a first conductive member 4222, the first conductive member 4222 is disposed opposite to the magnetic assembly 424 in a direction perpendicular to the optical axis of the lens 440, based on fleming's left-hand rule, the first conductive member 4222 may generate a magnetic field after being energized, the magnetic field generated by the first conductive member 4222 may interact with the magnetic field of the magnetic assembly 424 to generate a first acting force (or a magnetic acting force) perpendicular to the optical axis of the lens 440, the elastic structure 4221 may generate an elastic acting force perpendicular to the lens 440, the first acting force and the elastic acting force act on the bearing assembly 421 at the same time, the bearing assembly 421 may move up and down under the driving of the first acting force and the elastic acting force, thereby moving the lens 440 up and down to achieve auto-focusing of the lens 440 and/or compensate for shaking of the lens 440 in the vertical direction.
For example, referring to fig. 4 and 5, the first driving assembly 422 may include two first conductive members 4222, the two first conductive members 4222 are oppositely disposed on two sides of the second carrier 4212 in a direction perpendicular to the optical axis of the lens 440, for example, one first conductive member 4222 may be disposed on the first supporting portion 42121, and the other first conductive member 4222 may be disposed on the third supporting portion 42123. The two first conductive members 4222 may have the same structure, for example, both the two first conductive members 4222 may have a ring structure as shown in fig. 5, the first support portion 42121 and the third support portion 42123 may both have a limit structure, one first conductive member 4222 may be clamped on the limit structure of the first support portion 42121, and the other first conductive member 4222 may be clamped on the limit structure of the third support portion 42123. Of course, the two first conductive members 4222 may also have a single-rod structure or a double-rod structure. In some embodiments, the two first conductive members 4222 may have different structures, for example, one first conductive member 4222 may have a ring structure, and the other first conductive member 4222 may have a single rod structure or a double rod structure.
The magnetic assembly 424 may include a first magnetic member 4241, a second magnetic member 4242, and a third magnetic member 4243, and the first magnetic member 4241, the second magnetic member 4242, and the third magnetic member 4243 may all be disposed on the first carrier 4211.
For example, referring to fig. 6 to 8, fig. 6 is a schematic structural diagram of a first carrier in the anti-shake mechanism shown in fig. 4, fig. 7 is a schematic structural diagram of a second part of the anti-shake mechanism shown in fig. 3, and fig. 8 is a schematic structural diagram of a third part of the anti-shake mechanism shown in fig. 3. The first carrier 4211 is provided with a first accommodation groove 42116a, a second accommodation groove 42116b and a third accommodation groove 42116c, the first accommodation groove 42116a is disposed on the first side 42111, the second accommodation groove 42116b is disposed on the third side 42113, and the third accommodation groove 42116c is disposed on the fourth side 42114. The first magnetic member 4241 is disposed in the first accommodation groove 42116a and is opposite to one first conductive member 4222 in a direction perpendicular to the optical axis of the lens 440 such that the one first conductive member 4222 is located within the magnetic field generated by the first magnetic member 4241, and the one first conductive member 4222 may generate the magnetic field when being energized and interact with the magnetic field generated by the first magnetic member 4241 to generate a thrust force on the second carrier 4212.
The first magnetic member 4241 may include a first magnet 42411 and a second magnet 42412, the magnetism of the first magnet 42411 is opposite to that of the second magnet 42412, for example, the first magnet 42411 may be a south pole, and the second magnet 42412 may be a north pole; alternatively, the first magnet 42411 may be a north pole and the second magnet 42412 may be a south pole. And the first magnet 42411 and the second magnet 42412 are disposed in a stacked manner in a direction parallel to the optical axis of the lens. A portion of one first conductive member 4222 is disposed opposite to the first magnet 42411, and a portion of one first conductive member 4222 is disposed opposite to the second magnet 42412. Taking the first conductive member 4222 as an annular structure as an example, the first conductive member 4222 may include a first portion and a second portion arranged in a direction perpendicular to the optical axis of the lens 440, the first portion being arranged opposite to the first magnet 42411, and a third portion and a fourth portion arranged in a direction parallel to the optical axis of the lens 440, the second portion being arranged opposite to the second magnet 42412.
The second magnetic member 4242 is disposed in the second accommodation groove 42116b and is opposite to the other first conductive member 4222 in a direction perpendicular to the optical axis of the lens 440. So that the other first conductive member 4222 is located in the magnetic field generated by the second magnetic member 4242, the other first conductive member 4222 can generate a magnetic field when being electrified, and interact with the magnetic field generated by the second magnetic member 4242 and generate a thrust force on the second carrier 4212, and the second carrier 4212 moves up and down relative to the first carrier 4211 under the thrust force applied by the two second conductive members and the elastic force generated by the elastic structure.
The pushing force of the other first conductive member 4222 on the second carrier 4212 may be equal to the pushing force of the one first conductive member 4222 on the second carrier 4212, so that the two sides of the second carrier 4212 are stressed in balance and move up and down at the same speed. Of course, the thrust generated by the other first conductive member 4222 on the second carrier 4212 may not be equal to the thrust generated by the one first conductive member 4222 on the second carrier 4212, so that the two sides of the second carrier 4212 are unbalanced and move up and down at different speeds, thereby realizing that the second carrier 4212 deflects by a certain angle.
In the embodiment of the present application, the second magnetic member 4242 may have the same structure as the first magnetic member 4241, for example, the second magnetic member 4242 may include a third magnet 42421 and a fourth magnet 42422, the third magnet 42421 has a magnetic property opposite to that of the fourth magnet 42422, for example, the third magnet 42421 may have a south pole, and the fourth magnet 42422 may have a north pole; alternatively, the third magnet 42421 may be a north pole and the fourth magnet 42422 may be a south pole. And the third magnet 42421 and the fourth magnet 42422 are arranged in a stacked manner in a direction parallel to the optical axis of the lens. A portion of the other first conductive member 4222 is disposed opposite to the third magnet 42421, and a portion of the other first conductive member 4222 is disposed opposite to the fourth magnet 42422, which may be referred to the above description of the one first conductive member 4222 and the first magnetic member 4241, and will not be described herein again.
The third magnetic member 4243 is disposed in the third accommodation groove 42116 c. The third magnetic member 4243 has a structure different from those of the first and second magnetic members 4241 and 4242, and may include a fifth magnet 42431 and a sixth magnet 42432, the fifth magnet 42431 and the sixth magnet 42432 being stacked in a direction perpendicular to the optical axis of the lens 440. The magnetism of the fifth magnet 42431 is opposite to the magnetism of the sixth magnet 42432, e.g., the fifth magnet 42431 may be a south pole and the sixth magnet 42432 may be a north pole; or the sixth magnet 42432 can be a north pole and the sixth magnet 42432 can be a south pole.
Referring to fig. 4, and fig. 9 and 10, fig. 9 is a schematic diagram of a fourth partial structure of the anti-shake mechanism shown in fig. 3, and fig. 10 is a schematic diagram of a fifth partial structure of the anti-shake mechanism shown in fig. 3. The resilient structure 4221 may include an upper resilient tab 42211 and a lower resilient tab 42212, the upper resilient tab 42211 and the lower resilient tab 42212 are respectively disposed on two sides of the second carrier 4212, for example, the second carrier 4212 has a first side and a second side opposite to each other, the upper resilient tab 42211 is disposed on the first side, and the lower resilient tab 42212 is disposed on the second side.
Wherein, a part of the upper elastic sheet 42211 and a part of the lower elastic sheet 42212 are respectively connected with the first carrier 4211. For example, as shown in fig. 4 and 9, the upper resilient piece 42211 may include a first body portion 42211a and a first coupling portion 42211b coupled to each other, the first body portion 42211a is disposed on a first side of the second carrier 4212, the first coupling portion 42211b is coupled to the first carrier 4211, and an elastic force may be generated between the first body portion 42211a and applied to the second carrier 4212. As shown in fig. 4 and 10, the lower elastic piece 42212 may include a second body portion 42212a and a second connection portion 42212b connected to each other, the second body portion 42212a is disposed on a second side of the second carrier 4212, the second connection portion 42212b is connected to the first carrier 4211, and an elastic force may be generated between the second body portion 42212a and the second connection portion 42212b, and the elastic force may act on the second carrier 4212. The elastic force generated by the elastic structure 4221 is the resultant of the elastic force generated by the lower elastic sheet 42212 and the elastic force generated by the upper elastic sheet 42211.
In the embodiment of the present disclosure, the second driving element 423 is located in a magnetic field generated by the magnetic element 424, and the second driving element 423 can drive the supporting element 421 to move along a direction perpendicular to the optical axis of the lens 440 under the action of the magnetic element 424. For example, the second driving assembly 423 may further include a second conductive member 4232, and the second conductive member 4232 is disposed opposite to the magnetic assembly 424 in a direction parallel to the optical axis of the lens 440. Based on fleming's left-hand rule, the second conductive member 4232 may generate a magnetic field after being powered on, the magnetic field generated by the second conductive member 4232 may interact with the magnetic field of the magnetic assembly 424 to generate a second acting force (or magnetic acting force) parallel to the optical axis of the lens 440, and the second acting force acts on the carrier assembly 421 to drive the carrier assembly 421 to move along the direction perpendicular to the optical axis of the lens 440 based on the rolling structure 4231, so as to compensate for the shake of the lens 440 in the horizontal direction.
Exemplarily, referring to fig. 4 and fig. 11, fig. 11 is a schematic diagram of a sixth partial structure of the anti-shake mechanism shown in fig. 3. The second driving assembly 423 may include three second conductive members, one second conductive member 4232 is disposed opposite to the first magnetic member 4241 in a direction parallel to the optical axis of the lens 440, such that the second conductive member 4232 is located in the magnetic field generated by the first magnetic member 4241, when the second conductive member 4232 is powered on, the second conductive member 4232 may generate a magnetic field, interact with the magnetic field generated by the first magnetic member 4241, and generate a thrust force on the first carrier 4211, and the first carrier 4211, under the thrust force, based on the rolling operation of the rolling structure 4231, drives the second carrier 4212 and the guide member 4213 to move together in a direction perpendicular to the optical axis of the lens 440 (or move left and right), so as to compensate for the shake of the lens 440 in the horizontal direction.
Fig. 12 is a schematic view of a matching structure between the guide and the first ball in the anti-shake mechanism shown in fig. 4, as shown in fig. 3, 7, 9 and 12. The rolling structure 4231 may include a plurality of first balls 42311 and a plurality of second balls 42312, the plurality of first balls 42311 and the plurality of second balls 42312 are disposed on the bearing assembly 421, a second acting force generated by the second conductive member 4232 can drive the bearing assembly 421 to move along a first sub-direction based on the plurality of first balls 42311, and/or drive the bearing assembly 421 to move along a second sub-direction based on the plurality of second balls 42312, the first sub-direction and the second sub-direction are perpendicular to the optical axis direction of the lens 440, and the first sub-direction and the second sub-direction are perpendicular to each other.
It is understood that the movement of the lens 440 can be decomposed into three directions of movement, X, Y and a Z direction, wherein the X direction and the Y direction are simultaneously perpendicular to the Y direction, the X direction and the Y direction are perpendicular to each other on a plane perpendicular to the Z direction, wherein the Z direction can be understood as being parallel to the optical axis direction of the lens 440, the X direction and the Y direction can be understood as being two sub-directions perpendicular to the optical axis direction of the lens 440, the X direction can be understood as being a first sub-direction, and the Y direction can be understood as being a second sub-direction. Among the three second conductive members 4232, a second acting force generated by the second conductive member 4232 disposed opposite to the first magnetic member 4241 and the second conductive member 4232 disposed opposite to the second magnetic member 4242 can drive the carrier assembly 421 to move in the X direction based on the plurality of first balls 42311, and a second acting force generated by the second conductive member 4232 disposed opposite to the third magnetic member 4243 can drive the carrier assembly 421 to move in the Y direction based on the plurality of second balls 42312.
Specifically, a plurality of first balls 42311 are disposed in a guide 4213 on a face facing away from the first carrier 4211, and a plurality of second balls 42312 are interposed between the guide 4213 and the first carrier 4211. Thus, the first carrier 4211 may move in the first sub-direction (or in the X-direction) with respect to the housing 410 based on the plurality of first balls 42311, while bringing the guide 4213 and the second carrier 4212 to move in the first sub-direction, thereby enabling the first anti-shake mechanism 420 to compensate the lens 440 in the first sub-direction; and/or the first carrier 4211 may move in a second sub-direction (or Y-direction) with respect to the housing 410 based on the plurality of second balls 42312, and simultaneously move the guide 4213 and the second carrier 4212 in the second sub-direction, thereby enabling the first anti-shake mechanism 420 to compensate the lens 440 in the second sub-direction.
As shown in fig. 12, the guide 4213 may be provided with a plurality of first limiting grooves 42133 along the first sub-direction, one first ball 42311 is received in one first limiting groove 42133, and the first limiting groove 42133 may limit the rolling direction of the first ball 42311 so that the first ball 42311 can only roll along the first sub-direction, thereby improving the anti-shake precision of the first anti-shake mechanism 420 along the first sub-direction.
As shown in fig. 7 and 13, fig. 13 is a schematic structural view of a guide member in the anti-shake mechanism shown in fig. 4. The first carrier 4211 may be provided with a plurality of second limiting grooves 42117 along the second sub-direction, one surface of the guide member 4213 close to the first carrier 4211 is provided with a plurality of third limiting grooves 42134, one third limiting groove 42134 is arranged opposite to one second limiting groove 42117, the shape and size of the second limiting groove 42117 and the third limiting groove 42134 which are arranged opposite to each other are matched, one second ball 42312 is clamped between one second limiting groove 42117 and one third limiting groove 42134, one second ball 42312 may contact with the groove bottom surface and the groove wall surface of the second limiting groove 42117 and may also contact with the groove bottom surface and the groove wall surface of the third limiting groove 42134, and the anti-shake precision of the first anti-shake mechanism 420 in the second sub-direction may be improved.
As shown in fig. 4 and 6-8, the first carrier 4211 has a groove 42118 and a protrusion 42119 disposed adjacent to each other, the guide 4213 is received in the groove 42118, and an outer surface of the protrusion 42119 is substantially flush with an outer surface of the guide 4213. Specifically, the groove 42118 may be disposed on the second and third sides 42112, 42113 and the tab 42119 may be disposed on the first and fourth sides 42111, 42114. Or the heights of the first side 42111 and the fourth side 42114 in the direction parallel to the optical axis of the lens 440 are both greater than the heights of the second side 42112 and the third side 42113, so that a groove 42118 is formed in the second side 42112 and the third side 42113, and a protrusion 42119 is formed at a portion of the first side 42111 and the fourth side 42114 higher than the second side 42112 and the third side 42113. The guide 4213 is stacked on the second and third sides 42112 and 42113 and is received in the groove 42118, and the outer surface of the guide 4213 is substantially flush with the outer surfaces of the first and fourth sides 42111 and 42114. Wherein substantially flush is understood to mean that the two outer surfaces are flush within tolerances in the art.
The rolling structure 4231 may further comprise a third ball 42313, the third ball 42313 is disposed on the carrier assembly 421, and the plurality of third balls 42313 may enable the carrier assembly 421 to move in the first sub-direction and/or the second sub-direction relative to the housing 410. The third ball 42313 is disposed on the protrusion 42119, for example, a connection position between the third side 42113 and the fourth side 42114 may be provided with a fourth limiting groove 42119a, and the third ball 42313 is received in the fourth limiting groove 42119a and can roll in the fourth limiting groove 42119a along the first sub direction or the second sub direction. The second acting force generated by the second conductive member 4232 can drive the bearing assembly 421 to move in the first sub-direction based on the plurality of first balls 42311 and the third balls 42313, or drive the bearing assembly 421 to move in the second sub-direction based on the plurality of second balls 42312 and the third balls 42313.
The ball type driving motor in the related art is generally provided with eight balls, four of which are used to realize the movement of the carrier in the X direction and the other four of which are used to realize the movement of the carrier in the Y direction. In the embodiment of the present application, by providing the third balls 42313 that can roll along both the first sub-direction (or the X-direction) and the second sub-direction (or the Y-direction), the plurality of first balls 42311 that realize the rolling in the first sub-direction and the plurality of second balls 42312 that realize the rolling in the second sub-direction can share one ball, so that one ball can be saved, the number of components of the first anti-shake mechanism 420 can be reduced, and the structure of the first anti-shake mechanism 420 can be simplified, compared with the related art.
Referring to fig. 4 and 14, fig. 14 is a schematic structural view of the upper cover in the anti-shake mechanism shown in fig. 4. The first anti-shake mechanism 420 may further include an upper cover 426, and the upper cover 426 is connected to the housing 410 to form a movable space between the housing 410 and the upper cover 426, and the carrier assembly 421 is movably received in the movable space. It is understood that the carriage assembly 421 can move up and down and/or side to side within the activity space. The plurality of first balls 42311 are interposed between the upper cover 426 and the guide 4213 so that the guide 4213 can move left and right with respect to the upper cover 426, and the third balls 42313 are interposed between the upper cover 426 and the first carrier 4211 so that the first carrier 4211 can move left and right with respect to the upper cover 426.
The upper cover 426 is provided with a fifth position-limiting groove 4261 and a plurality of sixth position-limiting grooves 4262, the fifth position-limiting groove 4261 is arranged opposite to the fourth position-limiting groove 42119a in the direction parallel to the optical axis of the lens 440, the shape and the size of the fifth position-limiting groove 4261 are matched, and the third ball 42313 is clamped between the fourth position-limiting grooves 42119 a. A sixth limit groove 4262 is disposed opposite to the first limit groove 42133 in a direction parallel to the optical axis of the lens 440, and a first ball 42311 is interposed between the first limit groove 42133 and the sixth limit groove 4262.
The first anti-shake mechanism 420 may further include a circuit board 427, the circuit board 427 is disposed between the upper cover 426 and the carrier assembly 421, the circuit board 427 is fixedly connected to the upper cover 426, the plurality of second conductive members 4232 are disposed on the circuit board 427 and electrically connected to the circuit board 427, and the plurality of first conductive members 4222 are electrically connected to the circuit board 427. The circuit board 427 in the embodiment of the present application may be a flexible wiring board.
When focusing and/or anti-shake compensation in the vertical direction (or Z direction) of the lens 440 need to be achieved, the two first conductive members 4222 may be energized through the circuit board 427, the two first conductive members 4222 may generate magnetic fields in an energized state, the generated magnetic fields interact with the magnetic fields of the first magnetic member 4241 and the second magnetic member 4242 to generate thrust on the second carrier 4212, so as to drive the second carrier 4212 to move up and down in the accommodating space 42115 of the first carrier 4211, the second carrier 4212 may drive the lens 440 to move up and down when moving, so as to change the distance between the lens 440 and the image sensor 460 to achieve focusing, and shake of the lens 440 in a direction parallel to the optical axis of the lens 440 may also be compensated when the lens 440 moves up and down.
When it is required to achieve anti-shake of the lens 440 in the first sub-direction (or X-direction), one or both of the two second conductive members 4232 respectively disposed opposite to the first magnetic member 4241 and the second magnetic member 4242 may be energized through the circuit board 427, the second conductive members 4232 may generate a magnetic field in an energized state, the generated magnetic field interacts with the magnetic field of the first magnetic member 4241 and/or the second magnetic member 4242 to generate a thrust force on the first carrier 4211 to drive the first carrier 4211 to move the second carrier 4212 and the guide 4213 left and right in the first sub-direction (or the X direction) based on the plurality of first balls 42311 and the third balls 42313 relative to the upper cover 426 and the housing 410, and the second carrier 4212 may drive the lens 440 to move left and right in the first sub-direction (or the X direction) when moving, so as to compensate for the shake of the lens 440 in the first sub-direction.
When the anti-shake of the lens 440 in the second sub-direction (or Y-direction) needs to be achieved, the circuit board 427 may energize the second conductive member 4232 disposed opposite to the third magnetic member 4243, the second conductive member 4232 may generate a magnetic field in the energized state, the generated magnetic field and the magnetic field of the third magnetic member 4243 interact to generate a thrust force on the first carrier 4211 to drive the second carrier 4212 and the guide member 4213 to move the lens 440 in the second sub-direction (or Y-direction) based on the plurality of second balls 42312 and the third balls 42313 relative to the upper cover 426 and the housing 410 in the second sub-direction (or Y-direction), and the second carrier 4212 may drive the lens 440 to move in the second sub-direction (or Y-direction) together when moving, so as to compensate for the shake of the lens 440 in the second sub-direction (or Y-direction).
As shown in fig. 15, fig. 15 is a schematic diagram of a partial explosion structure in the camera module shown in fig. 2. The camera module 400 may further include a second anti-shake mechanism 480, wherein the second anti-shake mechanism 480 is connected to the image sensor 460, and the second anti-shake mechanism 480 is configured to drive the image sensor 460 to move along a direction perpendicular to the optical axis of the lens 440.
It can be understood that, the camera module 400 provided in the embodiment of the present application has the first anti-shake mechanism 420 and the second anti-shake mechanism 480 at the same time, the first anti-shake mechanism 420 can drive the lens 440 to move so as to realize the anti-shake of the lens 440, and the second anti-shake mechanism 480 can drive the image sensor 460 to move so as to realize the anti-shake of the image sensor 460, that is, the camera module 400 provided in the embodiment of the present application has the dual anti-shake function. In the related art, only a single anti-shake function such as camera anti-shake or image sensor anti-shake can be generally realized, but an anti-shake angle that can be realized by a single anti-shake structure such as camera anti-shake or image sensor anti-shake is limited by a structural space of the electronic device, and only an optical anti-shake function of a small angle (such as within 1 ° or within 1.5 °) can be realized. The camera module 400 of this application embodiment can realize camera lens 440 anti-shake and image sensor 460 anti-shake simultaneously, and integrated camera lens 440 anti-shake function and image sensor 460 anti-shake function can realize the optical anti-shake of bigger angle for correlation technique, effectively promotes camera module 400's optical anti-shake effect.
In the embodiment of the present application, referring to fig. 15 and 16, fig. 16 is an exploded schematic view of the second anti-shake mechanism in the camera module shown in fig. 15, the second anti-shake mechanism 480 may include a base plate 481 and a third driving assembly 482, the third driving assembly 482 and the image sensor 460 are disposed on the base plate 481, the base plate 481 may provide support for the third driving assembly 482 and the image sensor 460, and the third driving assembly 482 may drive the image sensor 460 to move in a direction perpendicular to an optical axis of the lens 440 (including an X direction and/or a Y direction) or rotate around the optical axis of the lens 440, so as to implement an optical anti-shake function of the image sensor 460. The third driving assembly 482 may include a fixing element 4821 and a plurality of shape-changing elements 4822, the fixing element 4821 is fixedly connected to the base plate 481, the shape-changing elements 4822 are connected to the fixing element 4821, the shape-changing elements 4822 can change shapes in the power-on state to drive the fixing element 4821 to move in the direction perpendicular to the optical axis of the lens 440 or rotate around the optical axis of the lens 440 with respect to the housing 410, since the fixing member 4821 is fixedly coupled to the base plate 481 and the image sensor 460 is disposed on the base plate 481, when the fixing member 4821 moves in a direction perpendicular to the optical axis of the lens 440 or rotates around the optical axis of the lens 440 with respect to the housing 410, the base plate 481 can be made to move in a direction perpendicular to the optical axis of the lens 440 or rotate around the optical axis of the lens 440 with respect to the housing 410, thereby moving the image sensor 460 relative to the housing 410 in a direction perpendicular to the optical axis of the lens 440 or rotating around the optical axis of the lens 440.
The base plate 481 may include a first portion 4812, a second portion 4814, a third portion 4816 and a fourth portion 4818 connected end to end, the first portion 4812 and the third portion 4816 are disposed opposite to each other, the second portion 4814 and the fourth portion 4818 are disposed opposite to each other, the plurality of deformation members 4822 include a first deformation member 4822a, a second deformation member 4822b, a third deformation member 4822c and a fourth deformation member 4822d, the first deformation member 4822a is disposed on the first portion 4812, the second deformation member 4822b is disposed on the second portion 4814, the third deformation member 4822c is disposed on the third portion 4816, the fourth deformation member 4822d is disposed on the fourth portion 4818, the first deformation member 4822a, the second deformation member 4822b, the third deformation member 4822c and the fourth deformation member 4822d are deformed to cooperate with each other to drive the base plate 481 to move in a predetermined plane or rotate along a predetermined axis. For example, the driving base 481 translates in a plane perpendicular to the optical axis direction of the lens 440, rotates along the optical axis, or rotates along a predetermined axis parallel to the optical axis.
Illustratively, the base plate 481 includes a first end 4811, a second end 4813, a third end 4815, and a fourth end 4817, and the fixture 4821 includes a fifth end 4821a, a sixth end 4821b, a seventh end 4821c, and an eighth end 4821 d; the first deformation member 4822a may include a first pulling end fixedly connected to the first end portion 4811 and a first fixing end fixedly connected to the fifth end portion 4821 a; the second deformation element 4822b comprises a second pulling end fixedly connected to the second end portion 4813 and a second fixing end fixedly connected to the sixth end portion 4821 b; the third deformation element 4822c includes a third pulling end fixedly connected to the third end 4815 and a third fixing end fixedly connected to the seventh end 4821c, and the fourth deformation element 4822d includes a fourth pulling end fixedly connected to the fourth end 4817 and a fourth fixing end fixedly connected to the eighth end 4821 d. When the first deformation member 4822a, the second deformation member 4822b, the third deformation member 4822c and the fourth deformation member 4822d are deformed, the first pulling end pulls the first end portion 4811 of the base plate 481, the second end portion 4813 of the base plate 481, the third end portion 4815 of the third pulling end pulling fixing member 4821 and the fourth end portion 4817 of the base plate 481 are pulled by the fourth pulling end to pull the fixing member 4821 and the base plate 481.
In some embodiments, the first deforming member 4822a, the second deforming member 4822b, the third deforming member 4822c and the fourth deforming member 4822d are made of Shape Memory Alloy (SMA), and the shape memory alloy can heat and deform the SMA when the SMA is in an energized state, so that the length of the deforming member changes when the SMA is deformed, and the fixing member 4821 connected to the deforming member is moved.
The fixing member 4821 can be electrically connected to the first deforming member 4822a, the second deforming member 4822b, the third deforming member 4815 and the fourth deforming member 4817 at the end portions (the first end portion 4811, the second end portion 4813, the third end portion 4815 and the fourth end portion 4817) connected to the first deforming member 4822a, the second deforming member 4822b, the third deforming member 4822c and the fourth deforming member 4822d, and the fixing member 4821 can be connected to an external power supply device to realize power transmission, so as to deform the deforming members, and further change the length of the deforming members, and drive the fixing member 4821 to move, thereby driving the bottom plate 481 connected thereto to move, and further driving the image sensor 460 disposed on the bottom plate 481 to move, thereby realizing the anti-shake function of the image sensor 460.
For example, by energizing the first deformation member 4822a and the third deformation member 4822c, the lengths of the first deformation member 4822a and the third deformation member 4822c may be changed, so that the mount 4821 connected to the first deformation member 4822a and the third deformation member 4822c may be translated along the X-axis, by energizing the second deformation member 4822b and the fourth deformation member 4822d, the lengths of the second deformation member 4822b and the fourth deformation member 4822d may be changed, so that the mount 4821 connected to the second deformation member 4822b and the fourth deformation member 4822d may be translated along the Y-axis, the first deformation member 4822a and the second deformation member 4822b may be simultaneously energized, so that the base plate 481 connected to the first deformation member 4822a and the second deformation member 4822b may be rotated around the optical axis direction of the lens barrel 440, or the first deformation member 4822a and the fourth deformation member 4822d may be simultaneously energized, so that the base plate 481 connected to the first deformation member 4822a and the fourth deformation member 4822d may be rotated around the optical axis direction of the lens barrel 481, it can be understood that the rotation around the optical axis of the lens 440 can be clockwise rotation or counterclockwise rotation, and it can also apply different currents to the first deformation element 4822a, the second deformation element 4822b, the third deformation element 4822c, and the fourth deformation element 4822d at the same time to control the lengths of the deformations of the plurality of deformation elements 4822, so as to realize the translation of the base plate 481 relative to the housing 410 along the X axis, the translation of the Y axis, or the rotation around the optical axis of the lens 440, thereby driving the image sensor 460 to translate along the X axis, translate along the Y axis, or rotate around the optical axis of the lens 440.
The embodiment of the application also provides another camera shooting module which can comprise an outer shell, a lens, an image sensor, an anti-shaking mechanism and an anti-shaking module. The housing has a receiving space, for example, the housing may include the housing 410 and the upper cover 426 described in the above application embodiment, and an active space formed by connecting the housing 410 and the upper cover 426 is the receiving space described in the embodiment of the present application. The lens, the image sensor and the anti-shake mechanism are all accommodated in the accommodating space. The image sensor is disposed opposite to the lens in the optical axis direction of the lens to receive the light collected by the lens, which can be specifically referred to the related description of the lens 440 and the image sensor 460 in the above application embodiments, and is not described herein again. The anti-shake mechanism is connected to the lens, and the anti-shake mechanism may include two parts, such as a first part and a second part, the first part is used for driving the lens to move in a direction parallel to the optical axis of the lens, and the second part is used for driving the lens to move in a direction perpendicular to the optical axis of the lens, wherein the first part may include, but is not limited to, the first driving assembly 422 described in the above-mentioned application embodiment, and the second part may include, but is not limited to, the second driving assembly 423 described in the above-mentioned application embodiment. The anti-shake module is connected with the image sensor and used for driving the image sensor to move along the direction perpendicular to the optical axis of the lens. The specific structure of the anti-shake module can be referred to the second anti-shake mechanism 480 described in the above application embodiments, and is not described herein again.
It can be understood that the camera module of this application embodiment can realize camera lens and image sensor's two anti-shake functions through the setting of anti-shake mechanism and anti-shake module, and wherein the removal of two directions of camera lens can be realized through two different parts of anti-shake mechanism respectively moreover, prevents to lead to the easy condition of damaging of anti-shake mechanism to take place because the removal of two directions is realized simultaneously to same part.
The anti-shake mechanism, the camera module and the electronic equipment provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.
Claims (21)
1. The utility model provides a module of making a video recording which characterized in that includes:
a housing;
a lens disposed on the housing;
an image sensor disposed on the housing and opposite to the lens in a direction parallel to an optical axis of the lens;
the first anti-shake mechanism is connected with the lens and used for driving the lens to move along the direction parallel to the optical axis of the lens and move along the direction vertical to the optical axis of the lens; and
the second anti-shake mechanism is parallel to the optical axis direction of the lens and is arranged opposite to the first anti-shake mechanism, the second anti-shake mechanism is connected with the image sensor, and the second anti-shake mechanism is used for driving the image sensor to move along the direction perpendicular to the optical axis direction of the lens or rotate around the optical axis direction of the lens.
2. The camera module according to claim 1, wherein the first anti-shake mechanism comprises a carrier assembly, a first driving assembly and a second driving assembly, the carrier assembly is configured to carry the lens, the first driving assembly is disposed on the carrier assembly, the first driving assembly comprises an elastic structure, the elastic structure is disposed on the carrier assembly along a direction parallel to an optical axis of the lens, and the elastic structure is configured to enable the carrier assembly to move along the direction parallel to the optical axis of the lens by using an elastic acting force;
the second driving assembly is arranged on the first driving assembly and comprises a rolling structure, and the rolling structure is configured to enable the bearing assembly to move in a direction perpendicular to the optical axis of the lens based on the rolling operation of the rolling structure.
3. The camera module of claim 2, further comprising a magnetic assembly, the magnetic assembly capable of generating a magnetic field;
the first driving assembly is positioned in the magnetic field, and the first driving assembly can drive the bearing assembly to move along the direction parallel to the optical axis of the lens under the action of the magnetic assembly;
the second driving assembly is located in the magnetic field, and the second driving assembly can drive the bearing assembly to move in the direction perpendicular to the optical axis of the lens under the action of the magnetic assembly.
4. The camera module of claim 3, wherein the first driving assembly further comprises a first conductive member, the first conductive member is disposed opposite to the magnetic assembly in a direction perpendicular to the optical axis of the lens, the first conductive member is capable of generating a first acting force perpendicular to the optical axis of the lens under the action of the magnetic assembly, the elastic structure is capable of generating an elastic acting force perpendicular to the optical axis of the lens, and the first acting force and the elastic acting force act on the carrier assembly together.
5. The camera module according to claim 3 or 4, wherein the carrier assembly comprises a first carrier and a second carrier, the first carrier is provided with a receiving space, the second carrier is accommodated in the receiving space, the first conductive member is arranged on the second carrier and located in the receiving space, and the magnetic assembly is accommodated in the receiving space;
the elastic structure comprises an upper elastic sheet and a lower elastic sheet, the upper elastic sheet and the lower elastic sheet are respectively arranged on two sides of the second carrier, one part of the upper elastic sheet and one part of the lower elastic sheet are respectively connected with the first carrier, resultant force of acting forces generated by the upper elastic sheet and the lower elastic sheet is the elastic acting force, and the first acting force and the elastic acting force jointly act on the second carrier to drive the second carrier to move relative to the first carrier.
6. The camera module of claim 5, wherein the first driving assembly comprises two first conductive members disposed on opposite sides of the second carrier in a direction perpendicular to an optical axis of the lens, and the magnetic assembly comprises a first magnetic member disposed opposite to one of the first conductive members in the direction perpendicular to the optical axis of the lens, and a second magnetic member disposed opposite to the other of the first conductive members in the direction perpendicular to the optical axis of the lens.
7. The camera module of claim 6, wherein the first magnetic member comprises a first magnet and a second magnet of opposite magnetic polarity, the first magnet and the second magnet being stacked in a direction perpendicular to an optical axis of the lens, a portion of one of the first conductive members being disposed opposite the first magnet, a portion of one of the first conductive members being disposed opposite the second magnet;
the second magnetic part comprises a third magnet and a fourth magnet which are opposite in magnetism, the third magnet and the fourth magnet are arranged in a stacked mode along the direction perpendicular to the optical axis of the lens, one part of the other first conductive part is arranged opposite to the third magnet, and one part of the other first conductive part is arranged opposite to the fourth magnet.
8. The camera module according to any one of claims 2 to 4, wherein the second driving assembly includes a second conductive member, the second conductive member is disposed on the carrier assembly in a direction parallel to the optical axis of the lens and is opposite to the magnetic assembly, the rolling structure can roll with respect to the carrier assembly, and the second conductive member can generate a second acting force perpendicular to the optical axis of the lens under the action of the magnetic assembly to drive the carrier assembly to move in the direction perpendicular to the optical axis of the lens based on the rolling structure.
9. The camera module of claim 8, wherein the rolling structure comprises a plurality of first balls and a plurality of second balls, the plurality of first balls and the plurality of second balls are disposed on the carrier assembly, the second force generated by the second conductive member is capable of driving the carrier assembly to move in a first sub-direction based on the plurality of first balls and in a second sub-direction based on the plurality of second balls, the first sub-direction and the second sub-direction are perpendicular to an optical axis direction of the lens, and the first sub-direction and the second sub-direction are perpendicular to each other.
10. The camera module according to claim 9, wherein the carrier assembly includes a first carrier and a guide member, the guide member is disposed in the first carrier in a stacked manner in a direction parallel to an optical axis of the lens, the first balls are disposed on a surface of the guide member away from the first carrier, and the second balls are interposed between the guide member and the first carrier.
11. The camera module according to claim 10, wherein a plurality of first limiting grooves are formed in a surface of the guide member facing away from the first carrier along the first sub-direction, and one first ball is accommodated in one first limiting groove; the first carrier is provided with a plurality of second limiting grooves along a second sub-direction, one surface, facing the first carrier, of the guide piece is provided with a plurality of third limiting grooves along the second sub-direction, and one second ball clamp is arranged on one second limiting groove and one third limiting groove.
12. The camera module of claim 10, wherein the first carrier has a recess and a projection disposed adjacent to each other, the guide being received in the recess, the projection having an outer surface substantially flush with an outer surface of the guide;
the rolling structure further comprises a third ball arranged on the protruding portion, and a second acting force generated by the second conductive piece can drive the bearing assembly to move in the first sub-direction based on the plurality of first balls and the third balls or in the second sub-direction based on the plurality of second balls and the third balls.
13. The camera module of claim 10, wherein the first driving assembly comprises two first conductive members, and the two first conductive members are oppositely disposed on two sides of the first carrier in a direction perpendicular to an optical axis of the lens; the second driving assembly comprises three second conductive pieces, two of the second conductive pieces are arranged oppositely in the direction perpendicular to the optical axis of the lens, and the other second conductive piece is positioned between the two second conductive pieces;
the magnetic assembly comprises a first magnetic part, a second magnetic part and a third magnetic part, the first magnetic part and the second magnetic part are respectively arranged opposite to the first conductive part in the direction perpendicular to the optical axis of the lens and the second conductive part in the direction parallel to the optical axis of the lens, and the third magnetic part is arranged opposite to the second conductive part in the direction parallel to the optical axis of the lens.
14. The camera module of claim 13, wherein the first magnetic member comprises a first magnet and a second magnet of opposite magnetic polarity, the first magnet and the second magnet being stacked in a direction perpendicular to an optical axis of the lens;
the second magnetic part comprises a third magnet and a fourth magnet which are opposite in magnetism, and the third magnet and the fourth magnet are arranged in a stacking mode along the direction perpendicular to the optical axis of the lens;
the third magnetic member includes a fifth magnet and a sixth magnet that are opposite in magnetic property, and the fifth magnet and the sixth magnet are arranged in a stacked manner in a direction parallel to the optical axis of the lens.
15. The camera module according to claim 12, further comprising a housing and an upper cover, wherein the housing and the upper cover are connected to form a movable space therebetween, the carrier assembly is movably accommodated in the movable space, the first balls are clamped between the upper cover and the guide member, the third balls are clamped between the upper cover and the first carrier, the first conductive member is capable of driving the carrier assembly to move relative to the housing and the upper cover in a direction parallel to an optical axis of the lens, and the second conductive member is capable of driving the carrier assembly to move relative to the housing and the upper cover in a direction perpendicular to the optical axis of the lens.
16. The camera module of claim 15, further comprising a circuit board disposed between the top cover and the carrier assembly and electrically connected to the first conductive member and the second conductive member.
17. The camera module of any of claims 1-4, wherein the second anti-shake mechanism comprises a shape memory alloy motor.
18. The camera module according to claim 17, wherein the second anti-shake mechanism includes a base plate and a third driving assembly, the third driving assembly is disposed on the base plate, the third driving assembly includes a fixing member and a plurality of deformation members, the fixing member is connected to the base plate, the image sensor is disposed on the base plate, and the plurality of deformation members are deformable in an energized state to drive the image sensor to move relative to the housing in a direction perpendicular to an optical axis of the lens or rotate around the optical axis of the lens.
19. The camera module according to claim 18, wherein the base plate includes a first portion, a second portion, a third portion, and a fourth portion connected end to end, the first portion and the third portion are disposed opposite to each other, the second portion and the fourth portion are disposed opposite to each other, the plurality of deformation members include a first deformation member, a second deformation member, a third deformation member, and a fourth deformation member, the first deformation member is disposed in the first portion, the second deformation member is disposed in the second portion, the third deformation member is disposed in the third portion, the fourth deformation member is disposed in the fourth portion, and the first deformation member, the second deformation member, the third deformation member, and the fourth deformation member are mutually engaged to enable the base plate to move in a direction perpendicular to an optical axis of the lens or rotate around the optical axis of the lens with respect to the housing.
20. The camera module of claim 19, wherein the shape-changing element is made of a shape memory alloy material.
21. An electronic apparatus, comprising a housing and the camera module according to any one of claims 1 to 20, the camera module being disposed on the housing.
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CN202110886199.2A CN113489886B (en) | 2021-08-03 | 2021-08-03 | Camera module and electronic equipment |
PCT/CN2022/107514 WO2023011224A1 (en) | 2021-08-03 | 2022-07-22 | Camera module and electronic device |
US18/430,967 US20240171862A1 (en) | 2021-08-03 | 2024-02-02 | Motor, camera module, and electronic device |
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